国产日韩每日更新_日韩人体一区二区三区_免费三级精品综合_麻豆色婬网站av水蜜桃_男女做爽爽免费视频_青青久草国产麻豆_亚洲狼友深夜福利在线_给您带来最新最热门最好看的高清在线视频_欧美一级高潮片免费的_成人亚洲国产欧美一级视

Acid dyes are a class of water-soluble dyes with acidic groups on the structure, which are usually dyed and printed under acidic conditions when applied. There are many varieties of acid dyes, complete chromatography, simple dyeing process, bright color, widely used in wool, silk, nylon and its mixed textile. It is also suitable for Leather, ink, paper, wood and other industries.

 

Commonly used acid dye process:

1. Strong acid dyes

Dye x%.

Sodium Sulphate Anhydrous 5-15%.

Sulfuric acid 1-3%.

 

2. Weakly acidic dyes

Dye x%.

Acidic leveling agent 0.5-3%.

Ammonium sulfate 2-5% (light, medium).

Glacial acetic acid 0.5-3% (dark).

Fixing agent 3-6%.